The 7.5" barrel extension for the UTS-15 is machined from solid 4140 ordnance grade steel that is matte black oxide finished. Threaded to screw into the UTS-15 barrel, the muzzle of the 7.5" barrel extension will accept the UTAS tactical choke tube, standard UTS-15 choke tube and numerous after market tubes with Beretta style threads.

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